Dump her and block all communication from
her or ghost her with no explanation.
I say ghost her.
Shes emotionally blackmailing u cuz shes not ready to move on yet. Alot of women end relationships first cuz they got somebody else to latch on to before ending it with u. Shes shocked cuz she wasnt planning it and u beat her to the punch now shes tryna emotionally abuse u, and if the shoe was the other way around she'd leave u and not give any fukks...
If this makes u feel better 9/10 she wont actually kill herself and is just doing this for attention. With suicides, men say there gonna do it less but go thru with it way more, women say there gonna do it more but attempt it and never actually succeed way more (overdosing on Nyquil and shyt).
I knew a female who broke up her bf and he threatened the same thing, she ghosted him and he never went thru with it (i dont blame her), these people are pieces of shyt

just cuz they unstable dont mean I gotta pay for it
Ghost her.